>>4462587
RF is also known for ray angle issues. As far as I'm aware, for adapting rangefinder lenses (primarily, but apparently also SLR lenses), to mirrorless cameras, from best to worst:
>Leica M
>Leica SL=Nikon Z
>Sigma/Panasonic L
>Sony E=Canon RF
I'm not counting Fujifilm since they don't do full frame and APS-C generally crops out some of the problematic region anyway. GFX on the other hand is reported to have ~3.1mm sensor cover glass, which is comparable to Sony/Canon. Hasselblad supposedly has thin sensor cover glass which would put it up there with SL and Z but I can't find an exact figure.